What is the purpose of drip legs in natural gas piping?

Drip legs are an important feature in natural gas piping systems, primarily serving the purpose of collecting water and debris that may accumulate in the gas line. Natural gas can contain small amounts of moisture and other particulates, which can lead to operational issues if not managed properly. By incorporating a drip leg, the system provides a designated area where this moisture and debris can settle, preventing them from entering the appliances and affecting their performance.

This collection of contaminants helps maintain the integrity and efficiency of the gas system, ensuring that appliances operate smoothly and safely. Regular maintenance of the drip leg is essential to remove any accumulated water and debris, thereby mitigating the risk of corrosion and other blockages within the piping system.